Improvement



A.y WILSON.

Improvement in Saw-Gummers.

Patented Aug. 13,1872.

Inventor.

UNITED STATES PATENT GEEIGE.

ALVIN WILSON, OF OSHKOSH, VISCONSIN.

IMPROVEMENT IN SAW-GUMMERS.

Specification forming part of Letters Patent No. 136,39, dated August i3, 1872.

Specification describing a Power-Burr Saw- Gummer, invented by ALVIN IVILSON, of Oshkosh, county of Winnebago and State of Visconsin.,

The drawing represents a side elevation of a machine embodying my invention.

A is the frame of the machine, made ci wood. B is a nut', bolt, and washer, acting as a pivot or center on which the saw rests, and adjustable at any point in the slotted frame W. O is another iron frame, which holds W and slides up and down on the slides D D. E is a movable frame, ywhich holds the slides D D.` F is a hand-wheel, which turns the screw X which 'raises or lowers the frame C. N is a center-pin, on which the frame W rests. K is also a-smalliron piece, resting on centerpin N, and terminating at the end in the rack J. The pieces K and W are connected by a thumb-nut at the small slot in W. I is a worm, which, by moving the rack J, communicates an eccentric movement to the saw V, resting on pivot B. G is another hand-Wheel and screw, which gives a horizontal movement to frame E, which moves in the slides M M. U is a steel cutter or burr at the end of a little shaft, driven by the belt R andv pulley O.

Q is a lever which moves the shaft and cutter sidewise, so that after it has cut one tooth it may be Withdrawn and the saw moved one tooth further. L is an adjustable clamp, which serves to steady the saw while gumming.

The mode of operating is this: The saw is placed upon the pivot B and the nut set up iirmly. The clamp L is then adjusted to hold the side of saw. The cutter Urevolves about fifty times a minute, and by the hand-wheels F G H the saw is brought tol the cutter and guided in any direction required.

I claiml. The combination of the hand-wheel and screw Gr and t-he fra-me E with the frames K and YV, as and for the purposes hereinbefore set forth.

2. I claim the combination of the pieces K and W with the worm I and rack J to produce a curved movement.

3. The combination ot' the hand-wheel F and screw X with the frames K and W and slides D D, for the purpose set forth.

ALVIN WILSON.

IVitnesses:

E. C. BURGEss, JAS. E. Pneu. 

